Find the minor of elements 6 in the determinants ` Delta = {:|( 1,2,3),(4,5,6),(7,8,9)|:}`

Find the minor and cofactors of all the elements of the determinants {:|( 1,-2),(4,3)|:}

Expand |{:(1,2,3),(4,6,2),(5,9,4):}|

Find minors and cofactors of the elements of the determinant {:[( 2,-3,5),( 6,0,4),( 1,5,-7)]:} and verify that a_11 A_31+ a_12A_32+a_13A_33=0

Using Cofactors of elements of second row, evaluate Delta ={:|( 5,3,8),( 2,0,1),( 1,2,3) |:}

Verify Property 2 for Delta ={:|( 2,-3,5),(6,0,4),( 1,5,-7)|:}

Find the matrix X so that X[(1,2,3),(4,5,6)]=[(-7,-8,-9),(2,4,6)]

Verify property 1 for Delta ={:[( 2,-3,5),(6,0,4) ,( 1,5,-7) ]:}

If the natural numbers are divided into the groups (1),(2,3),(4,5,6),(7,8,9,10) .. then the sum of the elements of 25^(th ) group is

Given the sets A = {1, 3, 5}, B = {2, 4, 6} and C = {0, 2, 4, 6, 8} , which of the following may be considered as universal set (s) for all the three sets A, B and {0,1,2,3,4,5,6,7,8,9,10}

Find the centroid of the triangle whose vertices are (3,6,5) (6,2,7) and (3,2,9)